Density Tower Experiment Worksheet
What you do (Heaviest for its size sinks): 1. Pour honey slowly into the glass to fill about a quarter. 2. Pour coloured water gently down the side of the glass. 3. Pour the cooking oil gently on top and watch the layers settle. 4. Gently drop in a cork and a coin, see where each stops, and wipe up oil spills.
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- 1.🧺 Do we need turmeric powder for the density tower? (a) needed (b) not needed
- 2.🔍 Which is the odd one out? (a) a glass marble (b) a coin (c) very salty water (d) a ping-pong ball
- 3.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? What do we do with “the order of pouring”? (a) we measure it (b) we keep it the same (c) we change it
- 4.🛟 Why should we wipe up spilled oil at once? (a) spilled oil is slippery (b) oil makes it rain (c) oil turns into honey (d) oil attracts magnets
- 5.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a battery cell (c) a tall clear glass (d) water with food colour
- 6.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? Which of these is the one thing we change? (a) the same glass (b) the order of pouring (c) how much of each liquid (d) the order of the layers
- 7.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? Which of these is kept the same? (a) the order of the layers (b) the same three liquids (c) the order of pouring
- 8.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? What do we do with “the same glass”? (a) we measure it (b) we change it (c) we keep it the same
- 9.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) cooking oil (c) honey (d) a battery cell
- 10.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? Which of these is kept the same? (a) the order of pouring (b) the order of the layers (c) how much of each liquid
- 11.🧺 Which of these is needed for the density tower? (a) a magnet (b) a balloon (c) turmeric powder (d) a tall clear glass
- 12.True or false: a glass marble is denser than water. (a) False (b) True
- 13.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? What do we do with “the same three liquids”? (a) we change it (b) we keep it the same (c) we measure it
- 14.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: the order of pouring is what we measure. (a) False (b) True
- 15.🍯 Which of these is denser than water? (a) cooking oil (b) a ping-pong ball (c) air (d) a pebble
- 16.True or false: honey is not needed for the density tower. (a) True (b) False
- 17.True or false: honey is denser than water. (a) False (b) True
- 18.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: the same three liquids is kept the same. (a) False (b) True
- 19.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: how much of each liquid is what we measure. (a) True (b) False
- 20.True or false: a coin is less dense than water. (a) True (b) False
- 21.🔍 Which is the odd one out? (a) a cork (b) a ping-pong ball (c) an ice cube (d) very salty water
- 22.True or false: a cork is less dense than water. (a) True (b) False
- 23.🍯 Is very salty water denser or less dense than water? (a) less dense than water (b) denser than water
- 24.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: the same glass is what we measure. (a) True (b) False
- 25.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: the order of pouring is the one thing we change. (a) True (b) False
- 26.🧺 Which of these is not needed for the density tower? (a) honey (b) a spoon (c) turmeric powder (d) a tall clear glass
- 27.🛟 Which rule keeps the density tower experiment safe? (a) do not lick the spoon (b) pour it on the floor (c) taste each layer (d) throw the glass
- 28.🧺 Which of these is needed for the density tower? (a) a battery cell (b) a spoon (c) a balloon (d) a mirror
- 29.True or false: a pebble is denser than water. (a) False (b) True
- 30.🧺 Which of these is not needed for the density tower? (a) cooking oil (b) a balloon (c) honey (d) a spoon
- 31.🔍 Which is the odd one out? (a) a cork (b) air (c) an ice cube (d) a coin
- 32.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the water layer (b) on top of the oil (c) in the oil layer (d) at the very bottom
- 33.True or false: air is denser than water. (a) True (b) False
- 34.True or false: a ping-pong ball is denser than water. (a) True (b) False
- 35.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a tall clear glass (c) turmeric powder (d) honey
- 36.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) honey (c) yeast (d) cooking oil
- 37.🔍 Which is the odd one out? (a) a cork (b) a ping-pong ball (c) an ice cube (d) a pebble
- 38.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the water layer (b) under the honey (c) in the honey layer (d) on top of the oil
- 39.📘 What does “dense” mean? (a) very thin (b) heavy for its size (c) very hot (d) very colourful
- 40.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? What do we do with “how much of each liquid”? (a) we change it (b) we measure it (c) we keep it the same
Answer key
- not needed
- a ping-pong ball
- we change it
- spilled oil is slippery
- a battery cell
- the order of pouring
- the same three liquids
- we keep it the same
- a battery cell
- how much of each liquid
- a tall clear glass
- True
- we keep it the same
- False
- a pebble
- False
- True
- True
- False
- False
- very salty water
- True
- denser than water
- False
- True
- turmeric powder
- do not lick the spoon
- a spoon
- True
- a balloon
- a coin
- at the very bottom
- False
- False
- turmeric powder
- yeast
- a pebble
- on top of the oil
- heavy for its size
- we keep it the same
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